Intergranular Corrosion of Low Cr Ferritic Stainless Steel 429 Evaluated by the Optimized Double Loop Electrochemical Potentiokinetic Reactivation Test
Joint Authors
Li, Xiao-lei
Ni, Yi-fan
Jiang, Yi-ming
Li, Jin
Li, Li
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-21
Country of Publication
Egypt
No. of Pages
10
Abstract EN
Intergranular corrosion (IGC) of Nb-Ti stabilized ferritic stainless steel (FSS) 429 was investigated using the double loop electrochemical potentiokinetic reactivation (DL-EPR) test combined with the microstructure observation.
The results indicated that the optimized DL-EPR test condition for FSS 429 was the solution of 0.5 M H2SO4 + 0.0001 M KSCN with a scanning rate of 100 mV/min at 30°C.
Based on this condition, the specimens aging at 400–700°C for different duration were tested and a time-temperature-sensitization (TTS) curve for FSS 429 was obtained, which reveals the sensitization nose was located around 550°C.
The critical I r / I a value was determined to be about 3% above which IGC occurred.
After aging treatment, Cr depletion zone was detected using energy dispersive spectroscopy (EDS), most possibly due to Cr segregation around intergranular TiC and NbC.
American Psychological Association (APA)
Li, Xiao-lei& Ni, Yi-fan& Jiang, Yi-ming& Li, Jin& Li, Li. 2015. Intergranular Corrosion of Low Cr Ferritic Stainless Steel 429 Evaluated by the Optimized Double Loop Electrochemical Potentiokinetic Reactivation Test. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1053639
Modern Language Association (MLA)
Li, Xiao-lei…[et al.]. Intergranular Corrosion of Low Cr Ferritic Stainless Steel 429 Evaluated by the Optimized Double Loop Electrochemical Potentiokinetic Reactivation Test. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1053639
American Medical Association (AMA)
Li, Xiao-lei& Ni, Yi-fan& Jiang, Yi-ming& Li, Jin& Li, Li. Intergranular Corrosion of Low Cr Ferritic Stainless Steel 429 Evaluated by the Optimized Double Loop Electrochemical Potentiokinetic Reactivation Test. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1053639
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053639